Complicated fault block fluvial facies reservoir oil water well using situation split system

Abstract

It relates to the after potential exploration of an oil filed, with the ability of analyzing the oil distribution, left resource quantity, and so on. It comprises the data inspection device, data preprocessing device, KH value separation device, oil well water absorption preprocessing device, water absorption section separation device, dynamic personnel analysis separation device, small layer weighting separation device, single sand separation result accumulation device, data base, water filling effect, strata HK, and weighting of the oil reserve weighting by the dynamic personnel, determining the strata output through the water absorption section, water content of the strata through well fluid section, with the whole process being computerized and accurate.

Description

technical field [0001] The invention relates to a method for tapping the potential in the late stage of an oil field, analyzing the remaining oil distribution of each oil sand body, quantifying the remaining resource amount of each oil sand body, and proposing the production status of oil-water wells in complex fault block fluvial facies reservoirs in the direction of potential tapping. analysis system. Background technique [0002] my country's oilfields are mostly onshore oilfields with developed fluvial reservoirs. There are many faults and complex structures. The distribution of oil layers is controlled by both structure and lithology, and the continuity is poor. There are many relatively independent oil sand bodies scattered in the oil reservoirs. Due to the complexity of reservoirs, the diversity of mining methods, and the constant adjustment and potential excavation work, the distribution of remaining oil becomes highly dispersed and extremely complicated both horizon...

AI Technical Summary

Problems solved by technology

Field application and practice have proved that the conventional oil-water well producing status analysis method has high credibility and applicability for sandstone reservoirs with small production intervals, few perforated layers, and weak reservoir heterogeneity. Strong; but for complex fault-block fluvial reservoirs with strong reservoir heterogeneity, long production intervals and many perforated layers, its applicability is poor

At present, most oilfields on land in China are fluvial reservoirs. Fluvial reservoirs have many oil reservoirs in the vertical direction, with large reserves, serious heterogeneity, and low recovery rate. They are the areas with the largest remaining oil potential in continental formations.

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